DTU BCI speller: An SSVEP-based spelling system with dictionary support

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2013

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In this paper, a new brain computer interface (BCI) speller, named DTU BCI speller, is introduced. It is based on the steady-state visual evoked potential (SSVEP) and features dictionary support. The system focuses on simplicity and user friendliness by using a single electrode for the signal acquisition and displays stimuli on a liquid crystal display (LCD). Nine healthy subjects participated in writing full sentences after a five minutes introduction to the system, and obtained an information transfer rate (ITR) of 21.94 ± 15.63 bits/min. The average amount of characters written per minute (CPM) is 4.90 ± 3.84 with a best case of 8.74 CPM. All subjects reported systematically on different user friendliness measures, and the overall results indicated the potentials of the DTU BCI Speller system. For subjects with high classification accuracies, the introduced dictionary approach greatly reduced the time it took to write full sentences.
Original languageEnglish
Title of host publicationIEEE Engineering in medicine and biology society conference proceedings
PublisherIEEE
Publication date2013
Pages2212-2215
ISBN (print)9781457702167
DOIs
StatePublished - 2013
Event35th Annual International Conference of the IEEE EMBS - Osaka, Japan

Conference

Conference35th Annual International Conference of the IEEE EMBS
CountryJapan
CityOsaka
Period03/07/201307/07/2013
CitationsWeb of Science® Times Cited: No match on DOI

    Keywords

  • Engineered Materials, Dielectrics and Plasmas
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